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-   -   s4 na 1/2 bridge wont start please help (https://www.rx7club.com/build-threads-294/s4-na-1-2-bridge-wont-start-please-help-978143/)

959595rotor 11-29-11 05:27 PM

I think you are just having a rebuilt Engine low compression moment..In time the Engine will start and run but you will have to DRIVE it to put some break in miles on it..try checking your compression to see what it is it may take a 1000 miles to bring the Engine up to full compression, are you also using one piece seals, if so ,how much Apex seal end clearance did you allow, if the engine was built too loose it may have too much compression loss .... see what shows up....

youngfc 11-29-11 06:40 PM

@959595rotor I did a comp test and got great numbers, also using mazda 2 piece seals.
thanks

youngfc 11-29-11 06:48 PM

lets just get along on here guys.
thanks

RotaryEvolution 11-29-11 07:38 PM

i meant 200, because any real setup needs to breathe much better than the stock intake will allow for.

959595rotor 11-30-11 11:20 AM

Next.

959595rotor 11-30-11 11:24 AM

The next issue would be to check your fuel supply,including the choke if its there ,also check the would double check your Ign timing and spark plugs as well (they should be new) and clean.. if all is correct it...... WILL run

youngfc 11-30-11 05:31 PM

She runs!!!!!!!!!!!!!!!!!!

RotaryEvolution 11-30-11 05:32 PM

and the problem was?

youngfc 11-30-11 05:33 PM

im the happiest man alive now hahaha
thanks guys she sounds beautiful
it was a bad cas, replaced it with a spare and shes awsome

Aaron Cake 12-01-11 02:23 PM

Glad to hear it. Now without question, get some way to monitor A/F ratios like a wideband or EGT, because you'll want to know when it runs lean. You don't have enough injector so you'll need to keep an eye on it. An NA engine won't really just blow immediately and may run right through a lean condition...you'll just find out when your apex seal springs and corner seal springs are flattened.

youngfc 12-01-11 02:36 PM

thanks aaron. im doing a dual egt set up next week along with a nice header, and tags and tires.

jorx7 12-02-11 05:54 PM


Originally Posted by Aaron Cake (Post 10880702)
So yeah, I've tuned a bridgeport or two in my time...

You have a standalone. He has a stock ECU. Big difference. 460CC primaries are fine with a standalone because you can tune any PW you want at idle. This can't be done with the stock ECU.

Any dyno sheets of your full bridge on stock manifolds? I'm guessing ~220 RWHP.

actually 240 to the wheels.


Originally Posted by youngfc (Post 10882192)
im the happiest man alive now hahaha
thanks guys she sounds beautiful
it was a bad cas, replaced it with a spare and shes awsome

glad to hear now post some video of that bad boy.

youngfc 12-04-11 07:44 PM

im trying, but no camera yet getting one soon. thats bad ass you put 240 at the wheels with the stock ecu? what fuel pump? stock injectors?

beefhole 12-04-11 08:17 PM

stock manifolds ;)

jorx7 12-07-11 05:33 PM


Originally Posted by youngfc (Post 10887331)
im trying, but no camera yet getting one soon. thats bad ass you put 240 at the wheels with the stock ecu? what fuel pump? stock injectors?

there still alot to my build. but a apexi pfc, stock 460cc, walbro fuel pump. but thinking of going to a t2 pump cause still rich as hell with a lean ass tune. enzo racing did the tune.

youngfc 01-20-12 03:50 PM

she runs great and steady, plenty of power for now (hell of alot more than the factory set up :) ). got the header made, but im waiting on taxes to come in for a haltech re and custom intake mani ; then il put it all on there. spins first all the way from 4000 to 7000.
thanks oliver, vids up tomoro.

youngfc 01-20-12 05:00 PM

side note can anyone tell me where the black terminal on the alternator goes? car wont charge ( just trying to make sure its hooked up right before i replace it.)
thanks Oliver

youngfc 01-20-12 05:54 PM

searched alittle harder and found it.
thanks Oliver

youngfc 01-21-12 03:23 PM

soo I got some issues with the tranny that i was hopping someone could helps with. its an auto; park she wants to move, neutral she does move like in first but feels like it draging, the down shifts have gotten kinda random and I cant stop or shel stall. (kinda like the clutch is stuck engaged)
thanks Oliver

lastphaseofthis 01-21-12 03:32 PM

you'll likely get no help here for the Auto Tranny issues. i've put engines in 2 auto cars, and it takes ALOT to get them to stock working order... with a bridgeport, you may never get it to work correctly again, The TPS is used for auto shift calculations and you likely have to use more throttle at lower rpms. even completely stock, a rebuild needs more throttle until the compression comes up, using more throttle keeps you in a lower gear, and makes the autos downshift what seems like"sooner"..

5 speed it or go home.... or wait for my RX-8 6 speed-->fc thread.. about 2 weeks from now.

youngfc 01-21-12 03:54 PM


Originally Posted by lastphaseofthis (Post 10946259)
you'll likely get no help here for the Auto Tranny issues. i've put engines in 2 auto cars, and it takes ALOT to get them to stock working order... with a bridgeport, you may never get it to work correctly again, The TPS is used for auto shift calculations and you likely have to use more throttle at lower rpms. even completely stock, a rebuild needs more throttle until the compression comes up, using more throttle keeps you in a lower gear, and makes the autos downshift what seems like"sooner"..

5 speed it or go home.... or wait for my RX-8 6 speed-->fc thread.. about 2 weeks from now.

thanks but i plan on going 5spd just not yet waiting on taxes, but it was fine before the rebuild the only thing im worried abut is the first time i started her the the tranny cooler line blew off. i caught it soon, but i just added 2qrts to it and hooked it all up. was wondering if to little/much fluid might be the culprit, or maybe the kickdown cable? i know she holds 2.6qrts .
thanks Oliver :)

lastphaseofthis 01-21-12 04:12 PM


Originally Posted by youngfc (Post 10946300)
thanks but i plan on going 5spd just not yet waiting on taxes, but it was fine before the rebuild the only thing im worried abut is the first time i started her the the tranny cooler line blew off. i caught it soon, but i just added 2qrts to it and hooked it all up. was wondering if to little/much fluid might be the culprit, or maybe the kickdown cable? i know she holds 2.6qrts .
thanks Oliver :)

there is no kick down cable, .. that would be easy, there are shift charts arranged rpm by TPS... the auto computer controls it all, and they're buggy... if you got time to wait.. the 6 speed will be baller... :D, i may even release a kit to make it easy(bolt-on) for the noobs and wannabe's :D

youngfc 01-21-12 07:26 PM

how much for the 6 speed or hell even a conversion kit? Because I can get all the parts for a tii 5spd for 500 or less. and then whats that cable that goes on the tb from the passenger side?

hkp 01-22-12 08:09 AM

you have no need for a 6 speed, the 5 spd built for the turboII is pretty fumazing, i've personally seen a 9.85 pass on a stock trans in a 2700 lbs fc.

youngfc 01-22-12 10:04 AM

@ hkp I know how strong the tii box is, but I was just wondering how much for the 6spd kit?
thanks oliver


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